Iron-Catalyzed Nitrogen-Directed Coupling of Arene and Aryl Bromides Mediated by Metallic Magnesium
作者:Laurean Ilies、Motoaki Kobayashi、Arimasa Matsumoto、Naohiko Yoshikai、Eiichi Nakamura
DOI:10.1002/adsc.201100791
日期:2012.3
coupled with aryl bromides in the presence of an iron catalyst, metallic magnesium, a diamine ligand and an organic dihalide oxidant at 0 °C. The use of a 1:1 mixture of tetrahydrofuran and 1,4‐dioxane is essential for this CH bond activation reaction. The reaction has wider scope of the substrate compared with the reaction using a separately prepared Grignard reagent, and proceeds with lower catalyst
可以在0°C下在铁催化剂,金属镁,二胺配体和有机二卤化物氧化剂存在下,将2-芳基吡啶,2-烯基吡啶和芳族亚胺与芳基溴化物偶联。对于此CH键活化反应,必不可少的是使用四氢呋喃和1,4-二恶烷的1:1混合物。与使用单独制备的格氏试剂的反应相比,该反应具有更大的底物范围,并且以较低的催化剂负载量(2.5mol%)进行。